Multiplier-divider employing transistors



June 28,

) MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS Filed July 1, 1954 A. H. DICKINSON 74 Sheets-Sheet 2 MULTI PLICAND (MC) REGISTER (TENS ORDER) (TENS ORDER) 5 Q00 204 206 1:2: s1 s2 s3 s4 2 I I 2 4- 8 l I RIO s1 s3 s4 F lf zos jZIO 2|2 SEQ I l 1 t 4 1 L J I INTER. INTER. ZERO J l CKT. CKT. DET. I 2e4- MULTIPLIER (MP) REGISTER 595 3IZITENSI (TENS) r w I I R v. FWD. STEPPING I AEDJ. PULSE cm. I

. 274- 306 l s1 s3 |s4 l 272 282 (TENS) I 1 2 1 4 -I 8 sw.11 cs4 [52 l 127 Q COMPUTE- L i l f TRl g R INTER. INTER INTER. zERo c.F. cs3

CKT. CKT, CKT. DET. I1- sw. 3 I 22o '(uNITs 284 F STEPPING I GATE 3|2(uNITs) PULSE A UNITS I l ORDER HuNDREDs wIRE 296 v2 DISTRIBUTOR (HUNDREDS) PRODUCT (PR) ACCUMULATOR r I s1 s2 s3 $4 I s1 s2 s3 $4 I 2 4: 8 l 1 2 4 8 CY I 54 r i 55 I I l ITHousANDs I HuNDREDs COUNTER DU DLZ COUNTER DL1 DLZ l t I I i I HUNDREDS CARRY/-/ I I TO THOUSANDS L INVENTOR ARTHUR H-DICKINSON FIG. 30 BY A'ITORNEY June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 3 Filed July 1, 1954 FIG. 3b

'74 Sheets-Sheet 4 Filed July 1, 1954 INVENTOR ARTHUR H. DICKINSON BY fios d'l Q ATTORNEY N u mwogmh mohfivnzzou i I N-N w320mmm 5m |l|\ l| 53;; 10 m 11...; 58E 1055228 T" v 58 E. 10.25228 W L w v wwo zOHFSIEO m n T Q n m a L n E0 20 u w 53.5 555223 Et 03 ME; 20 $39.

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June 28, 1960 Filed July 1, 1954 mkz on xmn z June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 7 Filed July 1, 1954 PR-DD ACCUMULATOR ENTRY OF PARTIAL DIFFERENTIAL VALUES BINARY NUMBER TRIGGER STAGE CARRY OUT CARRY OUT CARRY O UT CARRY OUT S4 CY PARTIAL DIGIT TO BE, DIFEVALUE RESULT ENTERED ENTRY FIG. 8

NOTE- HI" INDICATES COUNTER ON INVENTOR. "o" INDICATES COUNTER OFF ARTHUR H. DICKINSON June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS '74 Sheets-Sheet 8 Filed July 1, 1954 BY ALTERNATE SUBTRACTION (IN TENS COMPLEMENT FORM) AND ADDITION OF THE DIVISOR DIVISION EXAMPLE 2072 -I- 037 DIVIDEND s E N E E L L I S 0 C S C E E 5 Y E Y L Y L ON C L c C C C T C Y ,Y NC N Y N C N c EI 0 C O 0 MD l I N T T N T C N C O C m H A m A A T R T R l R m R T I T D T D U B D B D B A H U D U A U T s A s R S R E N X U E A N E I 0 N O T S F O T WI III T I? II: I d O 0 0 O 0 077 3700 Q 0 0 O O 03336 T 63OO E 2 2 .4 2 279767370066 6 9 OO 7 7 730333639323538323630OQQISCO Q N L O 0 77 7 787572797673 006761.69656268 8 9 9 0O 0 C 23538323639331.73034 383 91041909090:9 Y9 O O G L N 066 6 7 7 7 8 8 9 9 9 00 C C C C C 5 C 6 6 090 9C0 O O O O T. C W

FIG.9

ATTORNEY June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 10 Filed July 1, 1954 L V J INVENTOR.

owmsuo (on) ACCUMULATOR/ ARTHUR H. DICKWSON kw! G-WI9 ATTORNEY FIGJOb June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 11 Filed July 1, 1954 GT m P a L U P CARRY 111 -o-cARRY- CIRCUITS 314(5TH cY 306((333) 3os(cs4) 296 314(3RD CY) 7 00 ACCUMULATOR\ I VENTOR.

DIVIDEND I ARTHUR H. DICKINSON FIGJOc June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 12 Filed July 1, 1954 INVENTOR.

ARTHUR H. DICKINSON -mvms-0 (D0) ACCUMULATOR 0 M, d frToRNEY FIG.10d

June 28, 1960 Filed July 1, 1954 PR DD ORDERS A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 15 8TH 7TH 6TH 5TH 4TH 3RD 2ND IST o 0 2 o 1 2 o o DD 2 8 VA UE 2 [(+2) J J L 3 1 1 1 0: 4 E 2 2 D 1 1 4 "1 011 -1 9 e 5 o 1 z o o n.2, no 1 1 4 curry) I 2 I 2 I I 1 I 1 1 (+4) 6 8 7 7 2 O 0 .W 1 l {(+4) 41 H 1 +1 Z 7 2 4 7 2 O 0 9 1 41 I; (+2) g m 111 (+4) 111 2 2 DIVISION EXAMPLE I 1 2012 37 1 1 v e 1 7 NOTE .T .--W 43 2 2 +1 CARRY [+1] "ELUSIVE 1" (4) (+2) 1 1 BINARY-TO-DECADE {(+21 ADJUSTMENT (OCCURS WHEN STAGE s4 FIG.I4

GOES FROM "on" T0 "OFF"VALUE NOT coumao IN EXAMPLE) OTHER ARABIC NUMERALS ROMAN REPRESENT DIFFERENTIAL VALUES PARTIAL TO BE A DDED.

NUMERALS DENOTE CYCLE NUMBER IN EACH ARITHMETIC PROCESS GROUP.

INVENTOR. ARTHUR H. DICKINSON ATTORNEY June 28, 1960 -A. H. DICKINSQN MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 17 Filed July 1, 1954 8: oh n .223

I I l I I I I I I I l I I I I l l I llll l'lllll-lllu|lllll|llll.l llllll'lll N E 52.6 $5.8m $0-02 Mm Tl ONNdEE 9N m N m N 2.58.. mb H.

I. l I I Illll lllulllnllllllllllnlllllllllllnllllllllllllllllllllll cNNE 2oz.

mmdi 0* Nu w mwozuzcuwm 1950 A. H. DICKINSON 2,942,780

MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS Filed July 1, 1954 '74 Sheets-Sheet 18 FROM FIG. (6b

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m U) U 2 2 O m E 2 INVENTOR. w ARTHUR H. DICKINSON m O ATTORNEY June 28, 1960 A. H. DICKINSON MULTIPLIER-DIVIDER EMPLOYING TRANSISTORS 74 Sheets-Sheet 20 Filed July 1, 1954 I NI "ENTOR.

AR THUR H. DICKINSON ATTORNEY g g Hmf w tdE 

